This is an activity about scale. Participants will arrange imagery of Earth and many other space objects in order of their size from smallest to largest, their distance from Earth's surface, their temperature from coolest to hottest, and/or their...(View More) age from youngest to oldest. By manipulating these images and discussing their ideas, children and adults represent and confront their own mental models of space and time.(View Less)

This is an activity about Lunar samples. Learners will see snapshots of the Moon's history and hold an important artifact of American history with a Lunar Sample Disk. Earth rocks and soil of similar types as the lunar samples may be provided and...(View More) explored with hands, eyes, noses, and tools. Please note, checking out a Lunar Sample Disk requires training, a secure storage facility, and a minimum of a 6-week lead time. This activity is part of Explore! Marvel Moon, a series of activities developed specifically for use in libraries.(View Less)

This is a set of three activities about how scientists study other worlds. Learners will explore and compare the features of Mars and Earth, discuss what the features suggest about the history of Mars, and create a model to help them understand how...(View More) scientists view other worlds. The activities help to show why scientists are interested in exploring Mars for evidence of past life, and address the question: "Why are we searching for life on Mars?" It also includes specific tips within each activity for effectively engaging girls in STEM. This is activity 4 in Explore: Life on Mars? that was developed specifically for use in libraries.(View Less)